<?php 

function upload()
{
	
	$dossier = 'images/menu/';
	$fichier = basename($_FILES['image_menu']['name']);
	$taille_maxi = 100000;
	$taille = filesize($_FILES['image_menu']['tmp_name']);
	$extensions = array('.png', '.gif', '.jpg', '.jpeg');
	$extension = strrchr($_FILES['image_menu']['name'], '.'); 
	
	//Début des vérifications de sécurité...
	if(!in_array($extension, $extensions)) //Si l'extension n'est pas dans le tableau
	{
		 $erreur = 'Vous devez uploader un fichier de type png, gif, jpg, jpeg, txt ou doc...';
	}
	if($taille>$taille_maxi)
	{
		 $erreur = 'Le fichier est trop gros...';
	}
	if(!isset($erreur)) //S'il n'y a pas d'erreur, on upload
	{
		 //On formate le nom du fichier ici...
		 $fichier = strtr($fichier, 'ÀÁÂÃÄÅÇÈÉÊËÌÍÎÏÒÓÔÕÖÙÚÛÜÝàáâãäåçèéêëìíîïðòóôõöùúûüýÿ', 'AAAAAACEEEEIIIIOOOOOUUUUYaaaaaaceeeeiiiioooooouuuuyy');
		 $fichier = preg_replace('/([^.a-z0-9]+)/i', '-', $fichier);
		 if(move_uploaded_file($_FILES['image_menu']['tmp_name'], $dossier . $fichier)) //Si la fonction renvoie TRUE, c'est que ça a fonctionné...
		 {
			  echo 'Upload effectué avec succès !<br />';
			 // resize("images/menu/".$fichier);
			  smart_resize_image("images/menu/".$fichier, $width = 40, $height = 40, $proportional = false, $output = 'file', $delete_original = true, $use_linux_commands = false );
		 }
		 else //Sinon (la fonction renvoie FALSE).
		 {
			  echo 'Echec de l\'upload !<br />';
		 }
	}
	else
	{
		 echo $erreur;
	}
	return "images/menu/".$fichier;
}


function resize($fichier)
{
	$file = $fichier ; # L'emplacement de l'image à redimensionner. L'image peut être de type jpeg, gif ou png
	
	$x = 40;
	$y = 40; # Taille en pixel de l'image redimensionnée
	
	$size = getimagesize($file);
	
	if ($size) 
	{
		echo 'Image en cours de redimensionnement...<br />';
		
		if ($size['mime']=='image/jpeg' ) 
		{
			$img_big = imagecreatefromjpeg($file); # On ouvre l'image d'origine
			$img_new = imagecreate($x, $y);
			# création de la miniature
			$img_mini = imagecreatetruecolor($x, $y)	or   $img_mini = imagecreate($x, $y);
			
			// copie de l'image, avec le redimensionnement.
			imagecopyresized($img_mini,$img_big,0,0,0,0,$x,$y,$size[0],$size[1]);
			
			imagejpeg($img_mini,$file );
		}
		elseif ($size['mime']=='image/png' ) 
		{
			$img_big = imagecreatefrompng($file); # On ouvre l'image d'origine
			$img_new = imagecreate($x, $y);
			# création de la miniature
			$img_mini = imagecreatetruecolor($x, $y)	or   $img_mini = imagecreate($x, $y);
			
			// copie de l'image, avec le redimensionnement.
			imagecopyresized($img_mini,$img_big,0,0,0,0,$x,$y,$size[0],$size[1]);
			
			imagepng($img_mini,$file );
		
		}
		elseif ($size['mime']=='image/gif' ) 
		{
			$img_big = imagecreatefromgif($file); # On ouvre l'image d'origine
			$img_new = imagecreate($x, $y);
			# création de la miniature
			$img_mini = imagecreatetruecolor($x, $y) or   $img_mini = imagecreate($x, $y);
			
			// copie de l'image, avec le redimensionnement.
			imagecopyresized($img_mini,$img_big,0,0,0,0,$x,$y,$size[0],$size[1]);
			
			imagegif($img_mini,$file );
		
		}
	
		echo 'Image redimensionnée !<br />';
	} 		
}


function smart_resize_image( $file, $width = 0, $height = 0, $proportional = false, $output = 'file', $delete_original = true, $use_linux_commands = false )
  {
    if ( $height <= 0 && $width <= 0 ) {
      return false;
    }

    $info = getimagesize($file);
    $image = '';

    $final_width = 0;
    $final_height = 0;
    list($width_old, $height_old) = $info;

    if ($proportional) {
      if ($width == 0) $factor = $height/$height_old;
      elseif ($height == 0) $factor = $width/$width_old;
      else $factor = min ( $width / $width_old, $height / $height_old);  

      $final_width = round ($width_old * $factor);
      $final_height = round ($height_old * $factor);

    }
    else {
      $final_width = ( $width <= 0 ) ? $width_old : $width;
      $final_height = ( $height <= 0 ) ? $height_old : $height;
    }

    switch ( $info[2] ) {
      case IMAGETYPE_GIF:
        $image = imagecreatefromgif($file);
      break;
      case IMAGETYPE_JPEG:
        $image = imagecreatefromjpeg($file);
      break;
      case IMAGETYPE_PNG:
        $image = imagecreatefrompng($file);
      break;
      default:
        return false;
    }
   
    $image_resized = imagecreatetruecolor( $final_width, $final_height );
       
    if ( ($info[2] == IMAGETYPE_GIF) || ($info[2] == IMAGETYPE_PNG) ) {
      $trnprt_indx = imagecolortransparent($image);
   
      // If we have a specific transparent color
      if ($trnprt_indx >= 0) {
   
        // Get the original image's transparent color's RGB values
        $trnprt_color    = imagecolorsforindex($image, $trnprt_indx);
   
        // Allocate the same color in the new image resource
        $trnprt_indx    = imagecolorallocate($image_resized, $trnprt_color['red'], $trnprt_color['green'], $trnprt_color['blue']);
   
        // Completely fill the background of the new image with allocated color.
        imagefill($image_resized, 0, 0, $trnprt_indx);
   
        // Set the background color for new image to transparent
        imagecolortransparent($image_resized, $trnprt_indx);
   
     
      }
      // Always make a transparent background color for PNGs that don't have one allocated already
      elseif ($info[2] == IMAGETYPE_PNG) {
   
        // Turn off transparency blending (temporarily)
        imagealphablending($image_resized, false);
   
        // Create a new transparent color for image
        $color = imagecolorallocatealpha($image_resized, 0, 0, 0, 127);
   
        // Completely fill the background of the new image with allocated color.
        imagefill($image_resized, 0, 0, $color);
   
        // Restore transparency blending
        imagesavealpha($image_resized, true);
      }
    }

    imagecopyresampled($image_resized, $image, 0, 0, 0, 0, $final_width, $final_height, $width_old, $height_old);
 
    if ( $delete_original ) {
      if ( $use_linux_commands )
        exec('rm '.$file);
      else
        @unlink($file);
    }
   
    switch ( strtolower($output) ) {
      case 'browser':
        $mime = image_type_to_mime_type($info[2]);
        header("Content-type: $mime");
        $output = NULL;
      break;
      case 'file':
        $output = $file;
      break;
      case 'return':
        return $image_resized;
      break;
      default:
      break;
    }

    switch ( $info[2] ) {
      case IMAGETYPE_GIF:
        imagegif($image_resized, $output);
      break;
      case IMAGETYPE_JPEG:
        imagejpeg($image_resized, $output);
      break;
      case IMAGETYPE_PNG:
        imagepng($image_resized, $output);
      break;
      default:
        return false;
    }

    return true;
  }




?>